| // PR c++/98990 | |
| // { dg-do compile { target concepts } } | |
| int x; | |
| auto& f() { return x; } | |
| auto& f(auto) { return x; } | |
| using T1 = int&; | |
| using T1 = decltype(f('a')); | |
| int* y; | |
| template <class> | |
| struct S | |
| { | |
| static auto** f() { return &y; } | |
| static auto** f(auto) { return &y; } | |
| }; | |
| using T2 = int**; | |
| using T2 = decltype(S<void>::f('a')); |